Experimental analysis of a degraded open-cathode PEM fuel cell stack

The well-known challenges to overcome in PEM fuel cell research are their relatively low durability and the high costs for the platinum catalysts. This work focuses on degradation mechanisms that are present in open-cathode PEM fuel cell systems and their links to the decaying fuel cell performance....

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Autores: Strahl, Stephan, Gasamans Rodríguez, Noemí, Llorca Piqué, Jordi|||0000-0002-7447-9582, Husar, Attila Peter|||0000-0001-8503-3837
Tipo de documento: artigo
Data de publicação:2014
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositório:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglês
OAI Identifier:oai:upcommons.upc.edu:2117/23542
Acesso em linha:https://hdl.handle.net/2117/23542
https://dx.doi.org/10.1016/j.ijhydene.2013.12.115
Access Level:Acceso aberto
Palavra-chave:PEM fuel cells
power system control
PEMFC
open-cathode
degradation
in-situ and ex-situ experiments
Energia -- Gestió
Piles de combustible -- Control electrònic
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Àrees temàtiques de la UPC::Energies
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network_acronym_str ES
network_name_str España
repository_id_str
spelling Experimental analysis of a degraded open-cathode PEM fuel cell stackStrahl, StephanGasamans Rodríguez, NoemíLlorca Piqué, Jordi|||0000-0002-7447-9582Husar, Attila Peter|||0000-0001-8503-3837PEM fuel cellspower system controlPEMFCopen-cathodedegradationin-situ and ex-situ experimentsEnergia -- GestióPiles de combustible -- Control electrònicÀrees temàtiques de la UPC::Informàtica::Automàtica i controlÀrees temàtiques de la UPC::EnergiesThe well-known challenges to overcome in PEM fuel cell research are their relatively low durability and the high costs for the platinum catalysts. This work focuses on degradation mechanisms that are present in open-cathode PEM fuel cell systems and their links to the decaying fuel cell performance. Therefore a degraded, open-cathode, 20 cell, PEM fuel cell stack was analyzed by means of in-situ and ex-situ techniques. Voltage transients during external perturbations, such as changing temperature, humidity and stoichiometry show that degradation affects individual cells quite differently towards the end of life of the stack. Cells located close to the endplates of the stack show the biggest performance decay. Electrochemical impedance spectroscopy (EIS) data present non-reversible catalyst layer degradation but negligible membrane degradation of several cells. Post-mortem, ex-situ experiments, such as cyclic voltammetry (CV), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) show a significant active area loss of the first cells within the stack due to Pt dissolution, oxidation and agglomeration. Scanning electron microscope (SEM) images of the degraded cells in comparison with the normally working cells in the stack show severe carbon corrosion of the cathode catalyst layers.Peer Reviewed20142014-01-0120142014-07-17journal articlehttp://purl.org/coar/resource_type/c_6501AOhttp://purl.org/coar/version/c_b1a7d7d4d402bcceinfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/23542https://dx.doi.org/10.1016/j.ijhydene.2013.12.115reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengEuropean Commission http://dx.doi.org/10.13039/100011102 Seventh Framework Programme 303419 Physical bottom Up Multiscale Modelling for Automotive PEMFC Innovative performance and Durability optimizationopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/235422026-05-27T15:37:01Z
dc.title.none.fl_str_mv Experimental analysis of a degraded open-cathode PEM fuel cell stack
title Experimental analysis of a degraded open-cathode PEM fuel cell stack
spellingShingle Experimental analysis of a degraded open-cathode PEM fuel cell stack
Strahl, Stephan
PEM fuel cells
power system control
PEMFC
open-cathode
degradation
in-situ and ex-situ experiments
Energia -- Gestió
Piles de combustible -- Control electrònic
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Àrees temàtiques de la UPC::Energies
title_short Experimental analysis of a degraded open-cathode PEM fuel cell stack
title_full Experimental analysis of a degraded open-cathode PEM fuel cell stack
title_fullStr Experimental analysis of a degraded open-cathode PEM fuel cell stack
title_full_unstemmed Experimental analysis of a degraded open-cathode PEM fuel cell stack
title_sort Experimental analysis of a degraded open-cathode PEM fuel cell stack
dc.creator.none.fl_str_mv Strahl, Stephan
Gasamans Rodríguez, Noemí
Llorca Piqué, Jordi|||0000-0002-7447-9582
Husar, Attila Peter|||0000-0001-8503-3837
author Strahl, Stephan
author_facet Strahl, Stephan
Gasamans Rodríguez, Noemí
Llorca Piqué, Jordi|||0000-0002-7447-9582
Husar, Attila Peter|||0000-0001-8503-3837
author_role author
author2 Gasamans Rodríguez, Noemí
Llorca Piqué, Jordi|||0000-0002-7447-9582
Husar, Attila Peter|||0000-0001-8503-3837
author2_role author
author
author
dc.subject.none.fl_str_mv PEM fuel cells
power system control
PEMFC
open-cathode
degradation
in-situ and ex-situ experiments
Energia -- Gestió
Piles de combustible -- Control electrònic
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Àrees temàtiques de la UPC::Energies
topic PEM fuel cells
power system control
PEMFC
open-cathode
degradation
in-situ and ex-situ experiments
Energia -- Gestió
Piles de combustible -- Control electrònic
Àrees temàtiques de la UPC::Informàtica::Automàtica i control
Àrees temàtiques de la UPC::Energies
description The well-known challenges to overcome in PEM fuel cell research are their relatively low durability and the high costs for the platinum catalysts. This work focuses on degradation mechanisms that are present in open-cathode PEM fuel cell systems and their links to the decaying fuel cell performance. Therefore a degraded, open-cathode, 20 cell, PEM fuel cell stack was analyzed by means of in-situ and ex-situ techniques. Voltage transients during external perturbations, such as changing temperature, humidity and stoichiometry show that degradation affects individual cells quite differently towards the end of life of the stack. Cells located close to the endplates of the stack show the biggest performance decay. Electrochemical impedance spectroscopy (EIS) data present non-reversible catalyst layer degradation but negligible membrane degradation of several cells. Post-mortem, ex-situ experiments, such as cyclic voltammetry (CV), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) show a significant active area loss of the first cells within the stack due to Pt dissolution, oxidation and agglomeration. Scanning electron microscope (SEM) images of the degraded cells in comparison with the normally working cells in the stack show severe carbon corrosion of the cathode catalyst layers.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01
2014
2014-07-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AO
http://purl.org/coar/version/c_b1a7d7d4d402bcce
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/23542
https://dx.doi.org/10.1016/j.ijhydene.2013.12.115
url https://hdl.handle.net/2117/23542
https://dx.doi.org/10.1016/j.ijhydene.2013.12.115
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/100011102 Seventh Framework Programme 303419 Physical bottom Up Multiscale Modelling for Automotive PEMFC Innovative performance and Durability optimization
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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